I might be leary of him too. First of all there is no way to "turn a governor up" on a torqueflite. And second it has nothing to do with the reverse servo. But hey if it works correct now he must have done something right.
Actually the reverse servo breaking is something that just seems to happen once in awhile on torqueflites for no explained reason. Maybe a hairline crack in the servo piston from day one?? Who knows??
BTW 340Mopar what the heck is so tough about a torqueflite??? I've rebuilt 350 and 400 turbo's and 727 torqueflites and torqueflites are waaaay easier to work on in my opinion. Not that turbo-hydramatics are hard or anything but 727's have to be the simpleist of the bunch. I generally do one in about 2/3 of the time it takes me to do a GM and I've done way more GM's.